Check out the difference between the hiragana boin and the katakana vowel. This ppt can be used for teaching purposes in Nihongo for beginners.

1. 母音
Japanese Kana
Katakana Bouin
レッスン 一 (Ressun ichi)
DR. NOEL B. MANARPIIS (糸降雪)
noelbmanarpiis@cvsu.edu.ph
日本語講師 (Nihongo Koushi)
© Noel B. Manarpiis 2020

2. ひらがな
A

3. I
ひらがな

4. U
ひらがな

5. E
ひらがな

6. O
ひらがな